class C1 extends Object {
}
class C2 extends Function {
}
class C3 extends String {
}
class C4 extends Boolean {
}
class C5 extends Number {
}
class C6 extends Date {
}
class C7 extends RegExp {
}
class C8 extends Error {
}
class C9 extends Array {
}
class C10 extends Array {
}
